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After my first 25 hour oil change, and 10 minute run checking for leaks, etc. attempted to set up fuel tank monitoring on Kanardia Digi and DACU. Had some still unresolved problems, but next engine start only showed 15 psi oil pressure.

I am considering use of a mechanical gauge in place of the electrical sensor. I think the Kanardia will just display low oil pressure warning after start,  but no other issue. Just idle rpm would be used. Knowing good oil pressure is actually there will lessen my worries while going through complex Kanardia setup screens.

Think using mechanical gauge first is a good idea?

  • Re: 915is Low oil pressure troubleshooting

    by » 2 years ago


    I did not mention that I suspect an inadvertent change in the Kanardia setup is causing a false oil pressure reading.


  • Re: 915is Low oil pressure troubleshooting

    by » 2 years ago


    Temporarily install a mechanical gauge to confirm your suspicions.
    If your EMS setup is incorrect;  ex. You have a 70psi sender and the EMS thinks it is a 150psi sender all reading will be halved.

    I installed an OIL Pressure IDIOT Light in my initial build and got some flak over it.
    It acts as a second opinion and I am glad I have it.


    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Clicking the "Thank You" is Always Appreciated by Everyone.


  • Re: 915is Low oil pressure troubleshooting

    by » one year ago


    I am currently dealing with the same issue on a brand new 912iS. I have not flown yet and only have done ground runs. I performed the Rotax service letter for oil system purging and have been very careful to burp the system and check oil levels. After a few ground runs, I even inspected the internals of the oil tank, and changed/cut open the oil filter. At this point, I contacted Lockwood Aviation and there recommendation was two fold - 1) remove the oil pressure regulator cap, spring, and piston to inspect the piston for any fouling that may impact oil pressure regulation. 2) do exactly what you are proposing...plumb in a mechanical gauge to either verify the electrical indication coming from the engine to my Dynon EFIS or show that there is likely an issue with the engine pressure sensor.

    I would be very interested in any other experiences people may have with this situation and what they did to address it


  • Re: 915is Low oil pressure troubleshooting

    by » one year ago


    I disassembled  the oil pressure  regulator  and was surprised  to  find  the cover  was sol loose from the factory  with  no orings. After reassembly, all worked  fine. 


  • Re: 915is Low oil pressure troubleshooting

    by » one year ago


    Same thing for me except mine is a 912iS. I removed the pressure regulator cap, spring, and piston. I cleaned it up and blew out some very small debris. I re-assembled it in accordance with the Heavy Maintenance manual, there are no o-rings required. Immediately upon firing upo the engine, my cold old pressure was back exactly in the green.


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